A rapid entry to C-prenylcarbazoles: total synthesis of clausamine C–D, clausevatine D and clausine F
作者:Amit Kumar Jana、Dipakranjan Mal
DOI:10.1039/c0cc00527d
日期:——
The key prenylcarbazole precursor 33 was readily assembled from diester 30 by an ester-driven para-Claisen rearrangement followed by selective removal of the ester function. Unusual oxidative cyclization of 33 by m-CPBA resulted in the total synthesis of tetracyclic carbazole natural products 3 and 11.
通过酯驱动的对克莱森重排,然后选择性除去酯官能团,可以容易地从二酯30中组装关键的异戊基咔唑前体33。m-CPBA对33的异常氧化环化作用导致四环咔唑天然产物3和11的全合成。